doc/genps.pl

   1 #!/usr/bin/perl
   2 ## --------------------------------------------------------------------------
   3 ##
   4 ##   Copyright 1996-2012 The NASM Authors - All Rights Reserved
   5 ##   See the file AUTHORS included with the NASM distribution for
   6 ##   the specific copyright holders.
   7 ##
   8 ##   Redistribution and use in source and binary forms, with or without
   9 ##   modification, are permitted provided that the following
  10 ##   conditions are met:
  11 ##
  12 ##   * Redistributions of source code must retain the above copyright
  13 ##     notice, this list of conditions and the following disclaimer.
  14 ##   * Redistributions in binary form must reproduce the above
  15 ##     copyright notice, this list of conditions and the following
  16 ##     disclaimer in the documentation and/or other materials provided
  17 ##     with the distribution.
  18 ##
  19 ##     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  20 ##     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  21 ##     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  22 ##     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  23 ##     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  24 ##     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 ##     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26 ##     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27 ##     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28 ##     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29 ##     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30 ##     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  31 ##     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32 ##
  33 ## --------------------------------------------------------------------------
  34
  35 #
  36 # Format the documentation as PostScript
  37 #
  38
  39 use Env;
  40 use lib $srcdir;
  41
  42 require 'psfonts.ph';           # The fonts we want to use
  43 require 'pswidth.ph';           # PostScript string width
  44
  45 use Fcntl;
  46
  47 #
  48 # PostScript configurables; these values are also available to the
  49 # PostScript code itself
  50 #
  51 %psconf = (
  52            pagewidth => 595,    # Page width in PostScript points
  53            pageheight => 792,   # Page height in PostScript points
  54            lmarg => 100,        # Left margin in PostScript points
  55            rmarg => 50,         # Right margin in PostScript points
  56            topmarg => 100,      # Top margin in PostScript points
  57            botmarg => 100,      # Bottom margin in PostScript points
  58            plmarg => 50,        # Page number position relative to left margin
  59            prmarg => 0,         # Page number position relative to right margin
  60            pymarg => 50,        # Page number position relative to bot margin
  61            startcopyright => 75, # How much above the bottom margin is the
  62                                  # copyright notice stuff
  63            bulladj => 12,       # How much to indent a bullet paragraph
  64            tocind => 12,        # TOC indentation per level
  65            tocpnz => 24,        # Width of TOC page number only zone
  66            tocdots => 8,        # Spacing between TOC dots
  67            idxspace => 24,      # Minimum space between index title and pg#
  68            idxindent => 24,     # How much to indent a subindex entry
  69            idxgutter => 24,     # Space between index columns
  70            idxcolumns => 2,     # Number of index columns
  71            );
  72
  73 %psbool = (
  74            colorlinks => 0,     # Set links in blue rather than black
  75            );
  76
  77 # Known paper sizes
  78 %papersizes = (
  79                'a5'     => [421, 595], # ISO half paper size
  80                'b5'     => [501, 709], # ISO small paper size
  81                'a4'     => [595, 842], # ISO standard paper size
  82                'letter' => [612, 792], # US common paper size
  83                'pa4'    => [595, 792], # Compromise ("portable a4")
  84                'b4'     => [709,1002], # ISO intermediate paper size
  85                'legal'  => [612,1008], # US intermediate paper size
  86                'a3'     => [842,1190], # ISO double paper size
  87                '11x17'  => [792,1224], # US double paper size
  88                );
  89
  90 #
  91 # Parse the command line
  92 #
  93 undef $input;
  94 while ( $arg = shift(@ARGV) ) {
  95     if ( $arg =~ /^\-(|no\-)(.*)$/ ) {
  96         $parm = $2;
  97         $true = ($1 eq '') ? 1 : 0;
  98         if ( $true && defined($papersizes{$parm}) ) {
  99             $psconf{pagewidth}  = $papersizes{$parm}->[0];
 100             $psconf{pageheight} = $papersizes{$parm}->[1];
 101         } elsif ( defined($psbool{$parm}) ) {
 102             $psbool{$parm} = $true;
 103         } elsif ( $true && defined($psconf{$parm}) ) {
 104             $psconf{$parm} = shift(@ARGV);
 105         } elsif ( $parm =~ /^(title|subtitle|year|author|license)$/ ) {
 106             $metadata{$parm} = shift(@ARGV);
 107         } else {
 108             die "$0: Unknown option: $arg\n";
 109         }
 110     } else {
 111         $input = $arg;
 112     }
 113 }
 114
 115 #
 116 # Document formatting parameters
 117 #
 118 $paraskip = 6;                  # Space between paragraphs
 119 $chapstart = 30;                # Space before a chapter heading
 120 $chapskip = 24;                 # Space after a chapter heading
 121 $tocskip = 6;                   # Space between TOC entries
 122
 123 # Configure post-paragraph skips for each kind of paragraph
 124 %skiparray = ('chap' => $chapskip, 'appn' => $chapstart,
 125               'head' => $paraskip, 'subh' => $paraskip,
 126               'norm' => $paraskip, 'bull' => $paraskip,
 127               'code' => $paraskip, 'toc0' => $tocskip,
 128               'toc1' => $tocskip,  'toc2' => $tocskip);
 129
 130 # Custom encoding vector.  This is basically the same as
 131 # ISOLatin1Encoding (a level 2 feature, so we dont want to use it),
 132 # but with the "naked" accents at \200-\237 moved to the \000-\037
 133 # range (ASCII control characters), and a few extra characters thrown
 134 # in.  It is basically a modified Windows 1252 codepage, minus, for
 135 # now, the euro sign (\200 is reserved for euro.)
 136
 137 @NASMEncoding =
 138 (
 139  undef, undef, undef, undef, undef, undef, undef, undef, undef, undef,
 140  undef, undef, undef, undef, undef, undef, 'dotlessi', 'grave',
 141  'acute', 'circumflex', 'tilde', 'macron', 'breve', 'dotaccent',
 142  'dieresis', undef, 'ring', 'cedilla', undef, 'hungarumlaut',
 143  'ogonek', 'caron', 'space', 'exclam', 'quotedbl', 'numbersign',
 144  'dollar', 'percent', 'ampersand', 'quoteright', 'parenleft',
 145  'parenright', 'asterisk', 'plus', 'comma', 'minus', 'period',
 146  'slash', 'zero', 'one', 'two', 'three', 'four', 'five', 'six',
 147  'seven', 'eight', 'nine', 'colon', 'semicolon', 'less', 'equal',
 148  'greater', 'question', 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
 149  'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
 150  'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', 'bracketright',
 151  'asciicircum', 'underscore', 'quoteleft', 'a', 'b', 'c', 'd', 'e',
 152  'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
 153  't', 'u', 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright',
 154  'asciitilde', undef, undef, undef, 'quotesinglbase', 'florin',
 155  'quotedblbase', 'ellipsis', 'dagger', 'dbldagger', 'circumflex',
 156  'perthousand', 'Scaron', 'guilsinglleft', 'OE', undef, 'Zcaron',
 157  undef, undef, 'grave', 'quotesingle', 'quotedblleft',
 158  'quotedblright', 'bullet', 'endash', 'emdash', 'tilde', 'trademark',
 159  'scaron', 'guilsignlright', 'oe', undef, 'zcaron', 'Ydieresis',
 160  'space', 'exclamdown', 'cent', 'sterling', 'currency', 'yen',
 161  'brokenbar', 'section', 'dieresis', 'copyright', 'ordfeminine',
 162  'guillemotleft', 'logicalnot', 'hyphen', 'registered', 'macron',
 163  'degree', 'plusminus', 'twosuperior', 'threesuperior', 'acute', 'mu',
 164  'paragraph', 'periodcentered', 'cedilla', 'onesuperior',
 165  'ordmasculine', 'guillemotright', 'onequarter', 'onehalf',
 166  'threequarters', 'questiondown', 'Agrave', 'Aacute', 'Acircumflex',
 167  'Atilde', 'Adieresis', 'Aring', 'AE', 'Ccedilla', 'Egrave', 'Eacute',
 168  'Ecircumflex', 'Edieresis', 'Igrave', 'Iacute', 'Icircumflex',
 169  'Idieresis', 'Eth', 'Ntilde', 'Ograve', 'Oacute', 'Ocircumflex',
 170  'Otilde', 'Odieresis', 'multiply', 'Oslash', 'Ugrave', 'Uacute',
 171  'Ucircumflex', 'Udieresis', 'Yacute', 'Thorn', 'germandbls',
 172  'agrave', 'aacute', 'acircumflex', 'atilde', 'adieresis', 'aring',
 173  'ae', 'ccedilla', 'egrave', 'eacute', 'ecircumflex', 'edieresis',
 174  'igrave', 'iacute', 'icircumflex', 'idieresis', 'eth', 'ntilde',
 175  'ograve', 'oacute', 'ocircumflex', 'otilde', 'odieresis', 'divide',
 176  'oslash', 'ugrave', 'uacute', 'ucircumflex', 'udieresis', 'yacute',
 177  'thorn', 'ydieresis'
 178 );
 179
 180 # Name-to-byte lookup hash
 181 %charcode = ();
 182 for ( $i = 0 ; $i < 256 ; $i++ ) {
 183     $charcode{$NASMEncoding[$i]} = chr($i);
 184 }
 185
 186 #
 187 # First, format the stuff coming from the front end into
 188 # a cleaner representation
 189 #
 190 if ( defined($input) ) {
 191     sysopen(PARAS, $input, O_RDONLY) or
 192         die "$0: cannot open $input: $!\n";
 193 } else {
 194     open(PARAS, "<&STDIN") or die "$0: $!\n";
 195 }
 196 while ( defined($line = <PARAS>) ) {
 197     chomp $line;
 198     $data = <PARAS>;
 199     chomp $data;
 200     if ( $line =~ /^meta :(.*)$/ ) {
 201         $metakey = $1;
 202         $metadata{$metakey} = $data;
 203     } elsif ( $line =~ /^indx :(.*)$/ ) {
 204         $ixentry = $1;
 205         push(@ixentries, $ixentry);
 206         $ixterms{$ixentry} = [split(/\037/, $data)];
 207         # Look for commas.  This is easier done on the string
 208         # representation, so do it now.
 209         if ( $data =~ /^(.*)\,\037sp\037/ ) {
 210             $ixprefix = $1;
 211             $ixprefix =~ s/\037n $//; # Discard possible font change at end
 212             $ixhasprefix{$ixentry} = $ixprefix;
 213             if ( !$ixprefixes{$ixprefix} ) {
 214                 $ixcommafirst{$ixentry}++;
 215             }
 216             $ixprefixes{$ixprefix}++;
 217         } else {
 218             # A complete term can also be used as a prefix
 219             $ixprefixes{$data}++;
 220         }
 221     } else {
 222         push(@ptypes, $line);
 223         push(@paras, [split(/\037/, $data)]);
 224     }
 225 }
 226 close(PARAS);
 227
 228 #
 229 # Convert an integer to a chosen base
 230 #
 231 sub int2base($$) {
 232     my($i,$b) = @_;
 233     my($s) = '';
 234     my($n) = '';
 235     my($z) = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
 236     return '0' if ($i == 0);
 237     if ( $i < 0 ) { $n = '-'; $i = -$i; }
 238     while ( $i ) {
 239         $s = substr($z,$i%$b,1) . $s;
 240         $i = int($i/$b);
 241     }
 242     return $n.$s;
 243 }
 244
 245 #
 246 # Convert a string to a rendering array
 247 #
 248 sub string2array($)
 249 {
 250     my($s) = @_;
 251     my(@a) = ();
 252
 253     $s =~ s/\B\-\-\B/$charcode{'emdash'}/g;
 254     $s =~ s/\B\-\B/ $charcode{'endash'} /g;
 255
 256     while ( $s =~ /^(\s+|\S+)(.*)$/ ) {
 257         push(@a, [0,$1]);
 258         $s = $2;
 259     }
 260
 261     return @a;
 262 }
 263
 264 #
 265 # Take a crossreference name and generate the PostScript name for it.
 266 #
 267 # This hack produces a somewhat smaller PDF...
 268 #%ps_xref_list = ();
 269 #$ps_xref_next = 0;
 270 #sub ps_xref($) {
 271 #    my($s) = @_;
 272 #    my $q = $ps_xref_list{$s};
 273 #    return $q if ( defined($ps_xref_list{$s}) );
 274 #    $q = 'X'.int2base($ps_xref_next++, 52);
 275 #    $ps_xref_list{$s} = $q;
 276 #    return $q;
 277 #}
 278
 279 # Somewhat bigger PDF, but one which obeys # URLs
 280 sub ps_xref($) {
 281     return @_[0];
 282 }
 283
 284 #
 285 # Flow lines according to a particular font set and width
 286 #
 287 # A "font set" is represented as an array containing
 288 # arrays of pairs: [<size>, <metricref>]
 289 #
 290 # Each line is represented as:
 291 # [ [type,first|last,aux,fontset,page,ypos,optional col],
 292 #   [rendering array] ]
 293 #
 294 # A space character may be "squeezed" by up to this much
 295 # (as a fraction of the normal width of a space.)
 296 #
 297 $ps_space_squeeze = 0.00;       # Min space width 100%
 298 sub ps_flow_lines($$$@) {
 299     my($wid, $fontset, $type, @data) = @_;
 300     my($fonts) = $$fontset{fonts};
 301     my($e);
 302     my($w)  = 0;                # Width of current line
 303     my($sw) = 0;                # Width of current line due to spaces
 304     my(@l)  = ();               # Current line
 305     my(@ls) = ();               # Accumulated output lines
 306     my(@xd) = ();               # Metadata that goes with subsequent text
 307     my $hasmarker = 0;          # Line has -6 marker
 308     my $pastmarker = 0;         # -6 marker found
 309
 310     # If there is a -6 marker anywhere in the paragraph,
 311     # *each line* output needs to have a -6 marker
 312     foreach $e ( @data ) {
 313         $hasmarker = 1 if ( $$e[0] == -6 );
 314     }
 315
 316     $w = 0;
 317     foreach $e ( @data ) {
 318         if ( $$e[0] < 0 ) {
 319             # Type is metadata.  Zero width.
 320             if ( $$e[0] == -6 ) {
 321                 $pastmarker = 1;
 322             }
 323             if ( $$e[0] == -1 || $$e[0] == -6 ) {
 324                 # -1 (end anchor) or -6 (marker) goes with the preceeding
 325                 # text, otherwise with the subsequent text
 326                 push(@l, $e);
 327             } else {
 328                 push(@xd, $e);
 329             }
 330         } else {
 331             my $ew = ps_width($$e[1], $fontset->{fonts}->[$$e[0]][1],
 332                               \@NASMEncoding) *
 333                 ($fontset->{fonts}->[$$e[0]][0]/1000);
 334             my $sp = $$e[1];
 335             $sp =~ tr/[^ ]//d;  # Delete nonspaces
 336             my $esw = ps_width($sp, $fontset->{fonts}->[$$e[0]][1],
 337                                \@NASMEncoding) *
 338                 ($fontset->{fonts}->[$$e[0]][0]/1000);
 339
 340             if ( ($w+$ew) - $ps_space_squeeze*($sw+$esw) > $wid ) {
 341                 # Begin new line
 342                 # Search backwards for previous space chunk
 343                 my $lx = scalar(@l)-1;
 344                 my @rm = ();
 345                 while ( $lx >= 0 ) {
 346                     while ( $lx >= 0 && $l[$lx]->[0] < 0 ) {
 347                         # Skip metadata
 348                         $pastmarker = 0 if ( $l[$lx]->[0] == -6 );
 349                         $lx--;
 350                     };
 351                     if ( $lx >= 0 ) {
 352                         if ( $l[$lx]->[1] eq ' ' ) {
 353                             splice(@l, $lx, 1);
 354                             @rm = splice(@l, $lx);
 355                             last; # Found place to break
 356                         } else {
 357                             $lx--;
 358                         }
 359                     }
 360                 }
 361
 362                 # Now @l contains the stuff to remain on the old line
 363                 # If we broke the line inside a link, then split the link
 364                 # into two.
 365                 my $lkref = undef;
 366                 foreach my $lc ( @l ) {
 367                     if ( $$lc[0] == -2 || $$lc[0] == -3 || $lc[0] == -7 ) {
 368                         $lkref = $lc;
 369                     } elsif ( $$lc[0] == -1 ) {
 370                         undef $lkref;
 371                     }
 372                 }
 373
 374                 if ( defined($lkref) ) {
 375                     push(@l, [-1,undef]); # Terminate old reference
 376                     unshift(@rm, $lkref); # Duplicate reference on new line
 377                 }
 378
 379                 if ( $hasmarker ) {
 380                     if ( $pastmarker ) {
 381                         unshift(@rm,[-6,undef]); # New line starts with marker
 382                     } else {
 383                         push(@l,[-6,undef]); # Old line ends with marker
 384                     }
 385                 }
 386
 387                 push(@ls, [[$type,0,undef,$fontset,0,0],[@l]]);
 388                 @l = @rm;
 389
 390                 $w = $sw = 0;
 391                 # Compute the width of the remainder array
 392                 for my $le ( @l ) {
 393                     if ( $$le[0] >= 0 ) {
 394                         my $xew = ps_width($$le[1],
 395                                            $fontset->{fonts}->[$$le[0]][1],
 396                                            \@NASMEncoding) *
 397                             ($fontset->{fonts}->[$$le[0]][0]/1000);
 398                         my $xsp = $$le[1];
 399                         $xsp =~ tr/[^ ]//d;     # Delete nonspaces
 400                         my $xsw = ps_width($xsp,
 401                                            $fontset->{fonts}->[$$le[0]][1],
 402                                            \@NASMEncoding) *
 403                             ($fontset->{fonts}->[$$le[0]][0]/1000);
 404                         $w += $xew;  $sw += $xsw;
 405                     }
 406                 }
 407             }
 408             push(@l, @xd);      # Accumulated metadata
 409             @xd = ();
 410             if ( $$e[1] ne '' ) {
 411                 push(@l, $e);
 412                 $w += $ew; $sw += $esw;
 413             }
 414         }
 415     }
 416     push(@l,@xd);
 417     if ( scalar(@l) ) {
 418         push(@ls, [[$type,0,undef,$fontset,0,0],[@l]]); # Final line
 419     }
 420
 421     # Mark the first line as first and the last line as last
 422     if ( scalar(@ls) ) {
 423         $ls[0]->[0]->[1] |= 1;     # First in para
 424         $ls[-1]->[0]->[1] |= 2;    # Last in para
 425     }
 426     return @ls;
 427 }
 428
 429 #
 430 # Once we have broken things into lines, having multiple chunks
 431 # with the same font index is no longer meaningful.  Merge
 432 # adjacent chunks to keep down the size of the whole file.
 433 #
 434 sub ps_merge_chunks(@) {
 435     my(@ci) = @_;
 436     my($c, $lc);
 437     my(@co, $eco);
 438
 439     undef $lc;
 440     @co = ();
 441     $eco = -1;                  # Index of the last entry in @co
 442     foreach $c ( @ci ) {
 443         if ( defined($lc) && $$c[0] == $lc && $$c[0] >= 0 ) {
 444             $co[$eco]->[1] .= $$c[1];
 445         } else {
 446             push(@co, $c);  $eco++;
 447             $lc = $$c[0];
 448         }
 449     }
 450     return @co;
 451 }
 452
 453 #
 454 # Convert paragraphs to rendering arrays.  Each
 455 # element in the array contains (font, string),
 456 # where font can be one of:
 457 # -1 end link
 458 # -2 begin crossref
 459 # -3 begin weblink
 460 # -4 index item anchor
 461 # -5 crossref anchor
 462 # -6 left/right marker (used in the index)
 463 # -7 page link (used in the index)
 464 #  0 normal
 465 #  1 empatic (italic)
 466 #  2 code (fixed spacing)
 467 #
 468
 469 sub mkparaarray($@) {
 470     my($ptype, @chunks) = @_;
 471
 472     my @para = ();
 473     my $in_e = 0;
 474     my $chunk;
 475
 476     if ( $ptype =~ /^code/ ) {
 477         foreach $chunk ( @chunks ) {
 478             push(@para, [2, $chunk]);
 479         }
 480     } else {
 481         foreach $chunk ( @chunks ) {
 482             my $type = substr($chunk,0,2);
 483             my $text = substr($chunk,2);
 484
 485             if ( $type eq 'sp' ) {
 486                 push(@para, [$in_e?1:0, ' ']);
 487             } elsif ( $type eq 'da' ) {
 488                 push(@para, [$in_e?1:0, $charcode{'endash'}]);
 489             } elsif ( $type eq 'n ' ) {
 490                 push(@para, [0, $text]);
 491                 $in_e = 0;
 492             } elsif ( $type =~ '^e' ) {
 493                 push(@para, [1, $text]);
 494                 $in_e = ($type eq 'es' || $type eq 'e ');
 495             } elsif ( $type eq 'c ' ) {
 496                 push(@para, [2, $text]);
 497                 $in_e = 0;
 498             } elsif ( $type eq 'x ' ) {
 499                 push(@para, [-2, ps_xref($text)]);
 500             } elsif ( $type eq 'xe' ) {
 501                 push(@para, [-1, undef]);
 502             } elsif ( $type eq 'wc' || $type eq 'w ' ) {
 503                 $text =~ /\<(.*)\>(.*)$/;
 504                 my $link = $1; $text = $2;
 505                 push(@para, [-3, $link]);
 506                 push(@para, [($type eq 'wc') ? 2:0, $text]);
 507                 push(@para, [-1, undef]);
 508                 $in_e = 0;
 509             } elsif ( $type eq 'i ' ) {
 510                 push(@para, [-4, $text]);
 511             } else {
 512                 die "Unexpected paragraph chunk: $chunk";
 513             }
 514         }
 515     }
 516     return @para;
 517 }
 518
 519 $npara = scalar(@paras);
 520 for ( $i = 0 ; $i < $npara ; $i++ ) {
 521     $paras[$i] = [mkparaarray($ptypes[$i], @{$paras[$i]})];
 522 }
 523
 524 #
 525 # This converts a rendering array to a simple string
 526 #
 527 sub ps_arraytostr(@) {
 528     my $s = '';
 529     my $c;
 530     foreach $c ( @_ ) {
 531         $s .= $$c[1] if ( $$c[0] >= 0 );
 532     }
 533     return $s;
 534 }
 535
 536 #
 537 # This generates a duplicate of a paragraph
 538 #
 539 sub ps_dup_para(@) {
 540     my(@i) = @_;
 541     my(@o) = ();
 542     my($c);
 543
 544     foreach $c ( @i ) {
 545         my @cc = @{$c};
 546         push(@o, [@cc]);
 547     }
 548     return @o;
 549 }
 550
 551 #
 552 # This generates a duplicate of a paragraph, stripping anchor
 553 # tags (-4 and -5)
 554 #
 555 sub ps_dup_para_noanchor(@) {
 556     my(@i) = @_;
 557     my(@o) = ();
 558     my($c);
 559
 560     foreach $c ( @i ) {
 561         my @cc = @{$c};
 562         push(@o, [@cc]) unless ( $cc[0] == -4 || $cc[0] == -5 );
 563     }
 564     return @o;
 565 }
 566
 567 #
 568 # Scan for header paragraphs and fix up their contents;
 569 # also generate table of contents and PDF bookmarks.
 570 #
 571 @tocparas = ([[-5, 'contents'], [0,'Contents']]);
 572 @tocptypes = ('chap');
 573 @bookmarks = (['title', 0, 'Title'], ['contents', 0, 'Contents']);
 574 %bookref = ();
 575 for ( $i = 0 ; $i < $npara ; $i++ ) {
 576     my $xtype = $ptypes[$i];
 577     my $ptype = substr($xtype,0,4);
 578     my $str;
 579     my $book;
 580
 581     if ( $ptype eq 'chap' || $ptype eq 'appn' ) {
 582         unless ( $xtype =~ /^\S+ (\S+) :(.*)$/ ) {
 583             die "Bad para";
 584         }
 585         my $secn = $1;
 586         my $sech = $2;
 587         my $xref = ps_xref($sech);
 588         my $chap = ($ptype eq 'chap')?'Chapter':'Appendix';
 589
 590         $book = [$xref, 0, ps_arraytostr(@{$paras[$i]})];
 591         push(@bookmarks, $book);
 592         $bookref{$secn} = $book;
 593
 594         push(@tocparas, [ps_dup_para_noanchor(@{$paras[$i]})]);
 595         push(@tocptypes, 'toc0'.' :'.$sech.':'.$chap.' '.$secn.':');
 596
 597         unshift(@{$paras[$i]},
 598                 [-5, $xref], [0,$chap.' '.$secn.':'], [0, ' ']);
 599     } elsif ( $ptype eq 'head' || $ptype eq 'subh' ) {
 600         unless ( $xtype =~ /^\S+ (\S+) :(.*)$/ ) {
 601             die "Bad para";
 602         }
 603         my $secn = $1;
 604         my $sech = $2;
 605         my $xref = ps_xref($sech);
 606         my $pref;
 607         $pref = $secn; $pref =~ s/\.[^\.]+$//; # Find parent node
 608
 609         $book = [$xref, 0, ps_arraytostr(@{$paras[$i]})];
 610         push(@bookmarks, $book);
 611         $bookref{$secn} = $book;
 612         $bookref{$pref}->[1]--; # Adjust count for parent node
 613
 614         push(@tocparas, [ps_dup_para_noanchor(@{$paras[$i]})]);
 615         push(@tocptypes,
 616              (($ptype eq 'subh') ? 'toc2':'toc1').' :'.$sech.':'.$secn);
 617
 618         unshift(@{$paras[$i]}, [-5, $xref]);
 619     }
 620 }
 621
 622 #
 623 # Add TOC to beginning of paragraph list
 624 #
 625 unshift(@paras,  @tocparas);  undef @tocparas;
 626 unshift(@ptypes, @tocptypes); undef @tocptypes;
 627
 628 #
 629 # Add copyright notice to the beginning
 630 #
 631 @copyright_page =
 632 ([[0, $charcode{'copyright'}],
 633   [0, ' '], [0, $metadata{'year'}],
 634   [0, ' '], string2array($metadata{'author'}),
 635   [0, ' '], string2array($metadata{'copyright_tail'})],
 636  [string2array($metadata{'license'})],
 637  [string2array($metadata{'auxinfo'})]);
 638
 639 unshift(@paras, @copyright_page);
 640 unshift(@ptypes, ('norm') x scalar(@copyright_page));
 641
 642 $npara = scalar(@paras);
 643
 644 #
 645 # No lines generated, yet.
 646 #
 647 @pslines    = ();
 648
 649 #
 650 # Line Auxilliary Information Types
 651 #
 652 $AuxStr     = 1;                # String
 653 $AuxPage    = 2;                # Page number (from xref)
 654 $AuxPageStr = 3;                # Page number as a PostScript string
 655 $AuxXRef    = 4;                # Cross reference as a name
 656 $AuxNum     = 5;                # Number
 657
 658 #
 659 # Break or convert paragraphs into lines, and push them
 660 # onto the @pslines array.
 661 #
 662 sub ps_break_lines($$) {
 663     my ($paras,$ptypes) = @_;
 664
 665     my $linewidth  = $psconf{pagewidth}-$psconf{lmarg}-$psconf{rmarg};
 666     my $bullwidth  = $linewidth-$psconf{bulladj};
 667     my $indxwidth  = ($linewidth-$psconf{idxgutter})/$psconf{idxcolumns}
 668                      -$psconf{idxspace};
 669
 670     my $npara = scalar(@{$paras});
 671     my $i;
 672
 673     for ( $i = 0 ; $i < $npara ; $i++ ) {
 674         my $xtype = $ptypes->[$i];
 675         my $ptype = substr($xtype,0,4);
 676         my @data = @{$paras->[$i]};
 677         my @ls = ();
 678         if ( $ptype eq 'code' ) {
 679             my $p;
 680             # Code paragraph; each chunk is a line
 681             foreach $p ( @data ) {
 682                 push(@ls, [[$ptype,0,undef,\%BodyFont,0,0],[$p]]);
 683             }
 684             $ls[0]->[0]->[1] |= 1;           # First in para
 685             $ls[-1]->[0]->[1] |= 2;      # Last in para
 686         } elsif ( $ptype eq 'chap' || $ptype eq 'appn' ) {
 687             # Chapters are flowed normally, but in an unusual font
 688             @ls = ps_flow_lines($linewidth, \%ChapFont, $ptype, @data);
 689         } elsif ( $ptype eq 'head' || $ptype eq 'subh' ) {
 690             unless ( $xtype =~ /^\S+ (\S+) :(.*)$/ ) {
 691                 die "Bad para";
 692             }
 693             my $secn = $1;
 694             my $sech = $2;
 695             my $font = ($ptype eq 'head') ? \%HeadFont : \%SubhFont;
 696             @ls = ps_flow_lines($linewidth, $font, $ptype, @data);
 697             # We need the heading number as auxillary data
 698             $ls[0]->[0]->[2] = [[$AuxStr,$secn]];
 699         } elsif ( $ptype eq 'norm' ) {
 700             @ls = ps_flow_lines($linewidth, \%BodyFont, $ptype, @data);
 701         } elsif ( $ptype eq 'bull' ) {
 702             @ls = ps_flow_lines($bullwidth, \%BodyFont, $ptype, @data);
 703         } elsif ( $ptype =~ /^toc/ ) {
 704             unless ( $xtype =~/^\S+ :([^:]*):(.*)$/ ) {
 705                 die "Bad para";
 706             }
 707             my $xref = $1;
 708             my $refname = $2.' ';
 709             my $ntoc = substr($ptype,3,1)+0;
 710             my $refwidth = ps_width($refname, $BodyFont{fonts}->[0][1],
 711                                     \@NASMEncoding) *
 712                 ($BodyFont{fonts}->[0][0]/1000);
 713
 714             @ls = ps_flow_lines($linewidth-$ntoc*$psconf{tocind}-
 715                                 $psconf{tocpnz}-$refwidth,
 716                                 \%BodyFont, $ptype, @data);
 717
 718             # Auxilliary data: for the first line, the cross reference symbol
 719             # and the reference name; for all lines but the first, the
 720             # reference width; and for the last line, the page number
 721             # as a string.
 722             my $nl = scalar(@ls);
 723             $ls[0]->[0]->[2] = [[$AuxStr,$refname], [$AuxXRef,$xref]];
 724             for ( $j = 1 ; $j < $nl ; $j++ ) {
 725                 $ls[$j]->[0]->[2] = [[$AuxNum,$refwidth]];
 726             }
 727             push(@{$ls[$nl-1]->[0]->[2]}, [$AuxPageStr,$xref]);
 728         } elsif ( $ptype =~ /^idx/ ) {
 729             my $lvl = substr($ptype,3,1)+0;
 730
 731             @ls = ps_flow_lines($indxwidth-$lvl*$psconf{idxindent},
 732                                 \%BodyFont, $ptype, @data);
 733         } else {
 734             die "Unknown para type: $ptype";
 735         }
 736         # Merge adjacent identical chunks
 737         foreach $l ( @ls ) {
 738             @{$$l[1]} = ps_merge_chunks(@{$$l[1]});
 739         }
 740         push(@pslines,@ls);
 741     }
 742 }
 743
 744 # Break the main body text into lines.
 745 ps_break_lines(\@paras, \@ptypes);
 746
 747 #
 748 # Break lines in to pages
 749 #
 750
 751 # Where to start on page 2, the copyright page
 752 $curpage = 2;                   # Start on page 2
 753 $curypos = $psconf{pageheight}-$psconf{topmarg}-$psconf{botmarg}-
 754     $psconf{startcopyright};
 755 undef $columnstart;             # Not outputting columnar text
 756 undef $curcolumn;               # Current column
 757 $nlines = scalar(@pslines);
 758
 759 #
 760 # This formats lines inside the global @pslines array into pages,
 761 # updating the page and y-coordinate entries.  Start at the
 762 # $startline position in @pslines and go to but not including
 763 # $endline.  The global variables $curpage, $curypos, $columnstart
 764 # and $curcolumn are updated appropriately.
 765 #
 766 sub ps_break_pages($$) {
 767     my($startline, $endline) = @_;
 768
 769     # Paragraph types which should never be broken
 770     my $nobreakregexp = "^(chap|appn|head|subh|toc.|idx.)\$";
 771     # Paragraph types which are heading (meaning they should not be broken
 772     # immediately after)
 773     my $nobreakafter = "^(chap|appn|head|subh)\$";
 774     # Paragraph types which should never be broken *before*
 775     my $nobreakbefore = "^idx[1-9]\$";
 776     # Paragraph types which are set in columnar format
 777     my $columnregexp = "^idx.\$";
 778
 779     my $upageheight = $psconf{pageheight}-$psconf{topmarg}-$psconf{botmarg};
 780
 781     my $i;
 782
 783     for ( $i = $startline ; $i < $endline ; $i++ ) {
 784         my $linfo = $pslines[$i]->[0];
 785         if ( ($$linfo[0] eq 'chap' || $$linfo[0] eq 'appn' )
 786              && ($$linfo[1] & 1) ) {
 787             # First line of a new chapter heading.  Start a new page.
 788             undef $columnstart;
 789             $curpage++ if ( $curypos > 0 || defined($columnstart) );
 790             $curypos = $chapstart;
 791         } elsif ( defined($columnstart) && $$linfo[0] !~ /$columnregexp/o ) {
 792             undef $columnstart;
 793             $curpage++;
 794             $curypos = 0;
 795         }
 796
 797         if ( $$linfo[0] =~ /$columnregexp/o && !defined($columnstart) ) {
 798             $columnstart = $curypos;
 799             $curcolumn = 0;
 800         }
 801
 802         # Adjust position by the appropriate leading
 803         $curypos += $$linfo[3]->{leading};
 804
 805         # Record the page and y-position
 806         $$linfo[4] = $curpage;
 807         $$linfo[5] = $curypos;
 808         $$linfo[6] = $curcolumn if ( defined($columnstart) );
 809
 810         if ( $curypos > $upageheight ) {
 811             # We need to break the page before this line.
 812             my $broken = 0;             # No place found yet
 813             while ( !$broken && $pslines[$i]->[0]->[4] == $curpage ) {
 814                 my $linfo = $pslines[$i]->[0];
 815                 my $pinfo = $pslines[$i-1]->[0];
 816
 817                 if ( $$linfo[1] == 2 ) {
 818                     # This would be an orphan, don't break.
 819                 } elsif ( $$linfo[1] & 1 ) {
 820                     # Sole line or start of paragraph.  Break unless
 821                     # the previous line was part of a heading.
 822                     $broken = 1 if ( $$pinfo[0] !~ /$nobreakafter/o &&
 823                                      $$linfo[0] !~ /$nobreakbefore/o );
 824                 } else {
 825                     # Middle of paragraph.  Break unless we're in a
 826                     # no-break paragraph, or the previous line would
 827                     # end up being a widow.
 828                     $broken = 1 if ( $$linfo[0] !~ /$nobreakregexp/o &&
 829                                      $$pinfo[1] != 1 );
 830                 }
 831                 $i--;
 832             }
 833             die "Nowhere to break page $curpage\n" if ( !$broken );
 834             # Now $i should point to line immediately before the break, i.e.
 835             # the next paragraph should be the first on the new page
 836             if ( defined($columnstart) &&
 837                  ++$curcolumn < $psconf{idxcolumns} ) {
 838                 # We're actually breaking text into columns, not pages
 839                 $curypos = $columnstart;
 840             } else {
 841                 undef $columnstart;
 842                 $curpage++;
 843                 $curypos = 0;
 844             }
 845             next;
 846         }
 847
 848         # Add end of paragraph skip
 849         if ( $$linfo[1] & 2 ) {
 850             $curypos += $skiparray{$$linfo[0]};
 851         }
 852     }
 853 }
 854
 855 ps_break_pages(0,$nlines);      # Break the main text body into pages
 856
 857 #
 858 # Find the page number of all the indices
 859 #
 860 %ps_xref_page   = ();           # Crossref anchor pages
 861 %ps_index_pages = ();           # Index item pages
 862 $nlines = scalar(@pslines);
 863 for ( $i = 0 ; $i < $nlines ; $i++ ) {
 864     my $linfo = $pslines[$i]->[0];
 865     foreach my $c ( @{$pslines[$i]->[1]} ) {
 866         if ( $$c[0] == -4 ) {
 867             if ( !defined($ps_index_pages{$$c[1]}) ) {
 868                 $ps_index_pages{$$c[1]} = [];
 869             } elsif ( $ps_index_pages{$$c[1]}->[-1] eq $$linfo[4] ) {
 870                 # Pages are emitted in order; if this is a duplicated
 871                 # entry it will be the last one
 872                 next;           # Duplicate
 873             }
 874             push(@{$ps_index_pages{$$c[1]}}, $$linfo[4]);
 875         } elsif ( $$c[0] == -5 ) {
 876             $ps_xref_page{$$c[1]} = $$linfo[4];
 877         }
 878     }
 879 }
 880
 881 #
 882 # Emit index paragraphs
 883 #
 884 $startofindex = scalar(@pslines);
 885 @ixparas = ([[-5,'index'],[0,'Index']]);
 886 @ixptypes = ('chap');
 887
 888 foreach $k ( @ixentries ) {
 889     my $n,$i;
 890     my $ixptype = 'idx0';
 891     my $prefix = $ixhasprefix{$k};
 892     my @ixpara = mkparaarray($ixptype,@{$ixterms{$k}});
 893     my $commapos = undef;
 894
 895     if ( defined($prefix) && $ixprefixes{$prefix} > 1 ) {
 896         # This entry has a "hanging comma"
 897         for ( $i = 0 ; $i < scalar(@ixpara)-1 ; $i++ ) {
 898             if ( substr($ixpara[$i]->[1],-1,1) eq ',' &&
 899                  $ixpara[$i+1]->[1] eq ' ' ) {
 900                 $commapos = $i;
 901                 last;
 902             }
 903         }
 904     }
 905     if ( defined($commapos) ) {
 906         if ( $ixcommafirst{$k} ) {
 907             # This is the first entry; generate the
 908             # "hanging comma" entry
 909             my @precomma = splice(@ixpara,0,$commapos);
 910             if ( $ixpara[0]->[1] eq ',' ) {
 911                 shift(@ixpara); # Discard lone comma
 912             } else {
 913                 # Discard attached comma
 914                 $ixpara[0]->[1] =~ s/\,$//;
 915                 push(@precomma,shift(@ixpara));
 916             }
 917             push(@precomma, [-6,undef]);
 918             push(@ixparas, [@precomma]);
 919             push(@ixptypes, $ixptype);
 920             shift(@ixpara);     # Remove space
 921         } else {
 922             splice(@ixpara,0,$commapos+2);
 923         }
 924         $ixptype = 'idx1';
 925     }
 926
 927     push(@ixpara, [-6,undef]);  # Left/right marker
 928     $i = 1;  $n = scalar(@{$ps_index_pages{$k}});
 929     foreach $p ( @{$ps_index_pages{$k}} ) {
 930         if ( $i++ == $n ) {
 931             push(@ixpara,[-7,$p],[0,"$p"],[-1,undef]);
 932         } else {
 933             push(@ixpara,[-7,$p],[0,"$p,"],[-1,undef],[0,' ']);
 934         }
 935     }
 936
 937     push(@ixparas, [@ixpara]);
 938     push(@ixptypes, $ixptype);
 939 }
 940
 941 #
 942 # Flow index paragraphs into lines
 943 #
 944 ps_break_lines(\@ixparas, \@ixptypes);
 945
 946 #
 947 # Format index into pages
 948 #
 949 $nlines = scalar(@pslines);
 950 ps_break_pages($startofindex, $nlines);
 951
 952 #
 953 # Push index onto bookmark list
 954 #
 955 push(@bookmarks, ['index', 0, 'Index']);
 956
 957 # Get the list of fonts used
 958 %ps_all_fonts = ();
 959 foreach $fset ( @AllFonts ) {
 960     foreach $font ( @{$fset->{fonts}} ) {
 961         $ps_all_fonts{$font->[1]->{name}}++;
 962     }
 963 }
 964
 965 # Emit the PostScript DSC header
 966 print "%!PS-Adobe-3.0\n";
 967 print "%%Pages: $curpage\n";
 968 print "%%BoundingBox: 0 0 ", $psconf{pagewidth}, ' ', $psconf{pageheight}, "\n";
 969 print "%%Creator: (NASM psflow.pl)\n";
 970 print "%%DocumentData: Clean7Bit\n";
 971 print "%%DocumentFonts: ", join(' ', keys(%ps_all_fonts)), "\n";
 972 print "%%DocumentNeededFonts: ", join(' ', keys(%ps_all_fonts)), "\n";
 973 print "%%Orientation: Portrait\n";
 974 print "%%PageOrder: Ascend\n";
 975 print "%%EndComments\n";
 976 print "%%BeginProlog\n";
 977
 978 # Emit the configurables as PostScript tokens
 979 foreach $c ( keys(%psconf) ) {
 980     print "/$c ", $psconf{$c}, " def\n";
 981 }
 982 foreach $c ( keys(%psbool) ) {
 983     print "/$c ", ($psbool{$c}?'true':'false'), " def\n";
 984 }
 985
 986 # Emit custom encoding vector
 987 $zstr = '/NASMEncoding [ ';
 988 foreach $c ( @NASMEncoding ) {
 989     my $z = '/'.(defined($c)?$c:'.notdef ').' ';
 990     if ( length($zstr)+length($z) > 72 ) {
 991         print $zstr,"\n";
 992         $zstr = ' ';
 993     }
 994     $zstr .= $z;
 995 }
 996 print $zstr, "] def\n";
 997
 998 # Font recoding routine
 999 # newname fontname --
1000 print "/nasmenc {\n";
1001 print "  findfont dup length dict begin\n";
1002 print "    { 1 index /FID ne {def}{pop pop} ifelse } forall\n";
1003 print "    /Encoding NASMEncoding def\n";
1004 print "    currentdict\n";
1005 print "  end\n";
1006 print "  definefont pop\n";
1007 print "} def\n";
1008
1009 # Emit fontset definitions
1010 foreach $font ( keys(%ps_all_fonts) ) {
1011     print '/',$font,'-NASM /',$font," nasmenc\n";
1012 }
1013
1014 foreach $fset ( @AllFonts ) {
1015     my $i = 0;
1016     my @zfonts = ();
1017     foreach $font ( @{$fset->{fonts}} ) {
1018         print '/', $fset->{name}, $i, ' ',
1019         '/', $font->[1]->{name}, '-NASM findfont ',
1020         $font->[0], " scalefont def\n";
1021         push(@zfonts, $fset->{name}.$i);
1022         $i++;
1023     }
1024     print '/', $fset->{name}, ' [', join(' ',@zfonts), "] def\n";
1025 }
1026
1027 # This is used by the bullet-paragraph PostScript methods
1028 print "/bullet [",ps_string($charcode{'bullet'}),"] def\n";
1029
1030 # Emit the canned PostScript prologue
1031 open(PSHEAD, "< head.ps");
1032 while ( defined($line = <PSHEAD>) ) {
1033     print $line;
1034 }
1035 close(PSHEAD);
1036 print "%%EndProlog\n";
1037
1038 # Generate a PostScript string
1039 sub ps_string($) {
1040     my ($s) = @_;
1041     my ($i,$c);
1042     my ($o) = '(';
1043     my ($l) = length($s);
1044     for ( $i = 0 ; $i < $l ; $i++ ) {
1045         $c = substr($s,$i,1);
1046         if ( ord($c) < 32 || ord($c) > 126 ) {
1047             $o .= sprintf("\\%03o", ord($c));
1048         } elsif ( $c eq '(' || $c eq ')' || $c eq "\\" ) {
1049             $o .= "\\".$c;
1050         } else {
1051             $o .= $c;
1052         }
1053     }
1054     return $o.')';
1055 }
1056
1057 # Generate PDF bookmarks
1058 print "%%BeginSetup\n";
1059 foreach $b ( @bookmarks ) {
1060     print '[/Title ', ps_string($b->[2]), "\n";
1061     print '/Count ', $b->[1], ' ' if ( $b->[1] );
1062     print '/Dest /',$b->[0]," /OUT pdfmark\n";
1063 }
1064
1065 # Ask the PostScript interpreter for the proper size media
1066 print "setpagesize\n";
1067 print "%%EndSetup\n";
1068
1069 # Start a PostScript page
1070 sub ps_start_page() {
1071     $ps_page++;
1072     print "%%Page: $ps_page $ps_page\n";
1073     print "%%BeginPageSetup\n";
1074     print "save\n";
1075     print "%%EndPageSetup\n";
1076     print '/', $ps_page, " pa\n";
1077 }
1078
1079 # End a PostScript page
1080 sub ps_end_page($) {
1081     my($pn) = @_;
1082     if ( $pn ) {
1083         print "($ps_page)", (($ps_page & 1) ? 'pageodd' : 'pageeven'), "\n";
1084     }
1085     print "restore showpage\n";
1086 }
1087
1088 $ps_page = 0;
1089
1090 # Title page
1091 ps_start_page();
1092 $title = $metadata{'title'} || '';
1093 $title =~ s/ \- / $charcode{'emdash'} /;
1094
1095 $subtitle = $metadata{'subtitle'} || '';
1096 $subtitle =~ s/ \- / $charcode{'emdash'} /;
1097
1098 # Print title
1099 print "/ti ", ps_string($title), " def\n";
1100 print "/sti ", ps_string($subtitle), " def\n";
1101 print "lmarg pageheight 2 mul 3 div moveto\n";
1102 print "tfont0 setfont\n";
1103 print "/title linkdest ti show\n";
1104 print "lmarg pageheight 2 mul 3 div 10 sub moveto\n";
1105 print "0 setlinecap 3 setlinewidth\n";
1106 print "pagewidth lmarg sub rmarg sub 0 rlineto currentpoint stroke moveto\n";
1107 print "hfont1 setfont sti stringwidth pop neg ",
1108     -$HeadFont{leading}, " rmoveto\n";
1109 print "sti show\n";
1110
1111 # Print logo, if there is one
1112 # FIX: To be 100% correct, this should look for DocumentNeeded*
1113 # and DocumentFonts in the header of the EPSF and add those to the
1114 # global header.
1115 if ( defined($metadata{epslogo}) &&
1116      sysopen(EPS, $metadata{epslogo}, O_RDONLY) ) {
1117     my @eps = ();
1118     my ($bbllx,$bblly,$bburx,$bbury) = (undef,undef,undef,undef);
1119     my $line;
1120     my $scale = 1;
1121     my $maxwidth = $psconf{pagewidth}-$psconf{lmarg}-$psconf{rmarg};
1122     my $maxheight = $psconf{pageheight}/3-40;
1123     my $width, $height;
1124     my $x, $y;
1125
1126     while ( defined($line = <EPS>) ) {
1127         last if ( $line =~ /^%%EOF/ );
1128         if ( !defined($bbllx) &&
1129              $line =~ /^\%\%BoundingBox\:\s*([0-9\.]+)\s+([0-9\.]+)\s+([0-9\.]+)\s+([0-9\.]+)/i ) {
1130             $bbllx = $1+0; $bblly = $2+0;
1131             $bburx = $3+0; $bbury = $4+0;
1132         }
1133         push(@eps,$line);
1134     }
1135     close(EPS);
1136
1137     if ( defined($bbllx) ) {
1138         $width = $bburx-$bbllx;
1139         $height = $bbury-$bblly;
1140
1141         if ( $width > $maxwidth ) {
1142             $scale = $maxwidth/$width;
1143         }
1144         if ( $height*$scale > $maxheight ) {
1145             $scale = $maxheight/$height;
1146         }
1147
1148         $x = ($psconf{pagewidth}-$width*$scale)/2;
1149         $y = ($psconf{pageheight}-$height*$scale)/2;
1150
1151         if ( defined($metadata{logoxadj}) ) {
1152             $x += $metadata{logoxadj};
1153         }
1154         if ( defined($metadata{logoyadj}) ) {
1155             $y += $metadata{logoyadj};
1156         }
1157
1158         print "BeginEPSF\n";
1159         print $x, ' ', $y, " translate\n";
1160         print $scale, " dup scale\n" unless ( $scale == 1 );
1161         print -$bbllx, ' ', -$bblly, " translate\n";
1162         print "$bbllx $bblly moveto\n";
1163         print "$bburx $bblly lineto\n";
1164         print "$bburx $bbury lineto\n";
1165         print "$bbllx $bbury lineto\n";
1166         print "$bbllx $bblly lineto clip newpath\n";
1167         print "%%BeginDocument: ",ps_string($metadata{epslogo}),"\n";
1168         print @eps;
1169         print "%%EndDocument\n";
1170         print "EndEPSF\n";
1171     }
1172 }
1173 ps_end_page(0);
1174
1175 # Emit the rest of the document (page 2 and on)
1176 $curpage = 2;
1177 ps_start_page();
1178 foreach $line ( @pslines ) {
1179     my $linfo = $line->[0];
1180
1181     if ( $$linfo[4] != $curpage ) {
1182         ps_end_page($curpage > 2);
1183         ps_start_page();
1184         $curpage = $$linfo[4];
1185     }
1186
1187     print '[';
1188     my $curfont = 0;
1189     foreach my $c ( @{$line->[1]} ) {
1190         if ( $$c[0] >= 0 ) {
1191             if ( $curfont != $$c[0] ) {
1192                 print ($curfont = $$c[0]);
1193             }
1194             print ps_string($$c[1]);
1195         } elsif ( $$c[0] == -1 ) {
1196             print '{el}';       # End link
1197         } elsif ( $$c[0] == -2 ) {
1198             print '{/',$$c[1],' xl}'; # xref link
1199         } elsif ( $$c[0] == -3 ) {
1200             print '{',ps_string($$c[1]),'wl}'; # web link
1201         } elsif ( $$c[0] == -4 ) {
1202             # Index anchor -- ignore
1203         } elsif ( $$c[0] == -5 ) {
1204             print '{/',$$c[1],' xa}'; #xref anchor
1205         } elsif ( $$c[0] == -6 ) {
1206             print '][';         # Start a new array
1207             $curfont = 0;
1208         } elsif ( $$c[0] == -7 ) {
1209             print '{/',$$c[1],' pl}'; # page link
1210         } else {
1211             die "Unknown annotation";
1212         }
1213     }
1214     print ']';
1215     if ( defined($$linfo[2]) ) {
1216         foreach my $x ( @{$$linfo[2]} ) {
1217             if ( $$x[0] == $AuxStr ) {
1218                 print ps_string($$x[1]);
1219             } elsif ( $$x[0] == $AuxPage ) {
1220                 print $ps_xref_page{$$x[1]},' ';
1221             } elsif ( $$x[0] == $AuxPageStr ) {
1222                 print ps_string($ps_xref_page{$$x[1]});
1223             } elsif ( $$x[0] == $AuxXRef ) {
1224                 print '/',ps_xref($$x[1]),' ';
1225             } elsif ( $$x[0] == $AuxNum ) {
1226                 print $$x[1],' ';
1227             } else {
1228                 die "Unknown auxilliary data type";
1229             }
1230         }
1231     }
1232     print ($psconf{pageheight}-$psconf{topmarg}-$$linfo[5]);
1233     print ' ', $$linfo[6] if ( defined($$linfo[6]) );
1234     print ' ', $$linfo[0].$$linfo[1], "\n";
1235 }
1236
1237 ps_end_page(1);
1238 print "%%EOF\n";